CEO Steve Church says most cartons went to institutions such as restaurants and cafeterias, which were notified about the recall. He says only 90 cartons went to retail sales, and those were the ones mentioned in the initial announcement.

The company issued the recall after a random check by federal officials found a sample tested positive for listeria. No illnesses were reported.

The chopped and bagged lettuce, grown in Watsonville and processed in San Juan Bautista, was shipped Sept. 12 and 13. The recall covers products with a "use by date" of Sept. 29. The bag and box code is B256-46438-8.

The states covered by the recall include Minnesota as well as Alaska, Alabama, Arizona, California, Colorado, Connecticut, Florida, Illinois, Kentucky, Maryland, Missouri, Nevada, New York, Ohio, Oregon, Pennsylvania, Tennessee and Vermont.